Shutting or fastening contrivance



Apt. 10,1923 1,451,518

R. WEBER SHUTTING OR FASTENING CONTRIVANCE Filed' May 25, 1920 -atented Apr. 10, 1923 ATTENT game-E. f Y

,ROIBERT WEBER, or nnnsnnmenni unuy SHUTTIN'G on rns'rnmne o'oNTRIvANoE.

Application filed May 2 5, Serial No. 584,243.

No. 27730; England, February 12th, 1920,

Patent No. 159406; France,January 27 1920, Patent No. 509161; Italy, Dec. 31st, 1919, Patent No. 47/518, 181121; Norway, Dec. 30th, 1919, 33433; Switzerland, Dec. 16, 1919,

Patent No. 86532), of which the following is a specification. 7

The subject-matter of the present invention is a closure-fastener, simultaneously acting as a bufi'er foruse at windows, doors, ventilating flaps and the like, and consists of a-roller or the like being held on axis of rotation of the respective wing when the window is closed hereby opposing return movement, the retraction of the fastening element for opening the window being ef fected by means of a lever.

' In the'accompanying drawings one form actmgas buffer for use-at windows, doors,

of execution of the invention is represented by way of example.

Figure 1 represents a side view of the an rangement,

Figure 2 a front view of the same,

' As may be seen from the drawings a is a roller which is held with its trunnions b, b

within two brackets c, projecting from the window-casement 7c. Said brackets being provided with elongated slots (Z, allowing a respective movement of the trunnions h and thereby of the roller a within the brackets e is a. lever kept within two checks f'arranged at the cross-bar 1 of the window-sash. The arrangement is as follows Two brackets 0 project from the windowcasement 7c. Said brackets are provided with elongated slots (Z, in-which the roller (2 is adapted to move in up-and-downward direction by means of the trunnions b. The

slots are inclined against the opening movement of the casement so that the roller, which bears against the edge of the casement on the axis of rotation of the respective wing when the window is closedis unable to yield to pressure by the casement'even' if the same is not bolted, it being forced. by

such pressure against =the" side of the slot.

When the window "is open and shall be closed, however, the roller will be forced up the slot by the easement edge "thus yielding automatically. 3 For opening the window the roller is retracted by means of alever e,

which is trunnioned between brackets f on the casement. This lever is so, situated, as

to move-the roller up the slots ('Z when act-uated.

The arrangement will act as a buifer in case the door or window should beslammed and reduce the shock.

' The-invention is applicable to all kindsof casement windows and doors, ventilating flaps, heating, and like devices. The closure" fastener is besides especially adapted for the I doors of ovens and such doors which cannot be exactly closed by bolts and keys and must be kept in closed position all the same as for doors of emergency exits.

parts may be modified in different ways without departing from the spirit of vthe s0 invention.

The different Havingnow particularly/described and ascertained the nature of my said invention and in what manner the same is to be per formed, I declare that what I claim is 2- 1. In a closure fastener, simultaneously ventilating flaps and'the like, a casement, having two brackets projecting therefrom, said bracketsbelng providedv with elongated slots, said slots being inclined against the opening movement,a roller, said roller being providedwith trunnions, said trunnions being movable in said slots, said roller being normally held on the axis of rotation of the window-sash, means for guiding said roller by its trunnions in upward direction as soon as the window-sash provided with said arrangement shall be moved 1n order to be opened and closed whereby said roller returnsautomatically in its original position the axis of rotation of the window-sash, a

window cross-bar, two brackets being pro vided at sald wlndow cross-bar and a lever slamming of the window.

, ing fulcrumed thereto, said lever being adaptautomatically in its original position when.

the window is opened in order to prevent 3. In a closure-fastener, simultaneously acting as a buffer for use atwindows, doors,

ventilating flaps and the like, a casement having two brackets projecting therefrom and being slotted, aroller,trunnions at said roller, said roller being adapted to move up and down in said slots of said brackets, and being normally held on the axis of rotation of the window-sash, a window cross-bar being provided with two brackets, a lever beed to move said roller in upward direction in order to allow the opening of the window, said roller returning automatically in its original position when the window is opened thereby securing the Window-sash against unwilling slamming in reducing the shock, said window sash being adapted to move the roller upward when being closed and said roller being adapted to return in its ori inal position after the window sash is close so securing the window-sash against unwilling opening.

In testimony whereof I afiix my signature in presenceof two witnesses.

ROBERT Witnesses: Dr. GANDEs PROENE, ELSE HEYDEN.

WEBER. I 

